33 12 16.26 - 001-A - Butterfly Valves - Garney Construction

6
Cable Connections
14
WARNING:
Ensure all power supplies are
isolated before removing
actuator covers.
Check that the supply voltage agrees
with that stamped on actuator
nameplate.
A switch or circuit breaker must be
included in the wiring installation of the
actuator. The switch or circuit breaker
shall be mounted as close to the
actuator as possible and shall be
marked to indicate that it is the
disconnecting device for that particular
actuator. The actuator must be
protected with overcurrent protection
devices rated in accordance with Rotork
publication No. E130E Electric motor
performance data for IQ range
actuators.
WARNING:
Actuators for use on phase to
phase voltages greater than 600V
a.c.must not be used on supply
systems such as floating, or
earth-phase systems, where
phase to earth voltages in excess
of 600V a.c. could exist.
6.1 Earth/Ground Connections
A lug with a 6mm diameter hole is cast
adjacent to the conduit entries for
attachment of an external protective
earthing strap by a nut and bolt. An
internal earth terminal is also provided,
however it must not be used alone as
the protective Earth Connection.
6.2 Removing Terminal Cover
Using a 6mm Allen key loosen the four
captive screws evenly. Do not attempt
to lever off the cover with a screwdriver
as this will damage the “O” ring seal
and may damage the flamepath on a
certified unit.
Fig. 6
Actuators containing a Setting Tool
fitted to the inside of the terminal
compartment cover are identified with
a self-adhesive yellow label on the
outside of the terminal compartment
cover.
The wiring code card fixed in the cover
is particular to each actuator and must
not be interchanged with any other
actuator. If in doubt check the serial
number on the code card with that of
the actuator.
Fig. 6.1
A plastic bag in the terminal
compartment contains:
Terminal screws and washers.
Spare cover “O” ring seal.
Wiring diagram.
Instruction book.
Fig. 6.2
6.3 Cable Entry
Only appropriate certified Explosion-
Proof entry reducers, glands or conduit
may be used in hazardous locations.
Remove red plastic transit plugs. Make
cable entries appropriate to the cable
type and size. Ensure that threaded
adaptors, cable glands or conduit are
tight and fully waterproof. Seal unused
cable entries with a steel or brass
threaded plug. In hazardous areas an
appropriately certified threaded
blanking plug must be used.